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Amazon.com: Alto Professional TS312S | 2000 Watt 12 Inch Powered Portable PA Subwoofer With Selectable DSP Output Modes For Matching With Companion PA Speakers : Musical Instruments
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Amazon.com: Alto Professional TS312S | 2000 Watt 12 Inch Powered Portable PA Subwoofer With Selectable DSP Output Modes For Matching With Companion PA Speakers : Musical Instruments
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Amazon.com: Alto Professional TX212S - 900 Watt 12" Powered Speaker Subwoofer with DSP, Selector for Companion PA Speaker and Class D Amplifier with Overdrive Protection : Musical Instruments
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